[Pregnancy and stomach or duodenal ulcer].
D000328:Adult; D000367:Age Factors; D004381:Duodenal Ulcer / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D011248:Pregnancy Complications; D012737:Sex Factors; D013276:Stomach Ulcer / Q000453:epidemiology